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Finding the Fourth Proportional to 219,737.64, 329,229.72 and 147,555.24

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Solution

The fourth proportional to 219,737.64, 329,229.72 and 147,555.24 is: 221,079.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,737.64 : 329,229.72 = 147,555.24 : x
  2. Step 2: Convert to fraction form
    219,737.64/329,229.72 = 147,555.24/x
  3. Step 3: Cross multiply
    219,737.64x = 329,229.72 × 147,555.24
  4. Step 4: Simplify right side
    219,737.64x = 48,579,570,349.73
  5. Step 5: Solve for x
    x = 48,579,570,349.73/219,737.64
  6. Step 6: Final answer
    x = 221,079.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.